102601445 has 4 divisors (see below), whose sum is σ = 123121740. Its totient is φ = 82081152.

The previous prime is 102601417. The next prime is 102601469. The reversal of 102601445 is 544106201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70543201 + 32058244 = 8399^2 + 5662^2 .

It is a cyclic number.

It is not a de Polignac number, because 102601445 - 2¹² = 102597349 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102601445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10260140 + ... + 10260149.

It is an arithmetic number, because the mean of its divisors is an integer number (30780435).

Almost surely, 2^102601445 is an apocalyptic number.

It is an amenable number.

102601445 is a deficient number, since it is larger than the sum of its proper divisors (20520295).

102601445 is an equidigital number, since it uses as much as digits as its factorization.

102601445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20520294.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 102601445 is about 10129.2371381067. The cubic root of 102601445 is about 468.1494229692.

Adding to 102601445 its reverse (544106201), we get a palindrome (646707646).

The spelling of 102601445 in words is "one hundred two million, six hundred one thousand, four hundred forty-five".